From the 192.168.4.0/24 network I can ping the LAN side of the pfSense box (192.168.3.1), but cannot ping the WAN side (10.0.0.2), or the ADSL router (10.0.0.1), or any global addresses. From the 192.168.3.0/24 network I have no problems pinging any of these.

I have verified through the firewall logs that it is passing traffic from the 192.168.4.0/24 network, so it doesn't seem to be a firewall issue.

I also tried switching to manual NAT, and noticed that all of the automatically generated NAT rules were only for the 192.168.3.0/24 network, so I manually added rules for the 192.168.4.0/24 network, but that didn't seem to work either.</router></pfsense></adsl>